Hello Madhan,
I can help you with some links related to your query
http://www.sap.com/corporate-en/investors/pdf/SAP-2012-Ariba-Acquisition-Presentation.pdf
http://www.asugnews.com/2012/11/06/sap-ariba-roadmap-questions-asked-and-answered/
http://www.fcx.com/company/pdf/AN_QuickStart.pdf
Go through the documents and share your queries
Regards,
Karthika